Method and device for coupling spectacles and clip-on sun-shades with each other
US6231179A · kind A · utility
Assignees
Inventor
Key dates
| Filing date | Dec 10, 1999 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | Dec 10, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C2200/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a method and a device for coupling spectacles and clip-on sun-shades with each other, the spectacles having first lens frames connected together at their inner ends by a first nose frame, lenses fitted into respective first lens frames and arms mounted to outer ends of the first lens frames through hinges, the clip-on sun-shades having second lens frames connected together at their inner ends by a second nose frame and tinted lenses fitted into respective second lens frames. The device comprises a permanent magnet disposed to one of the spectacles and the clip-on sun-shades at a predetermined position; and a soft magnetic member disposed to the other of the spectacles and the clip-on sun-shades at a preset position in a manner such that the soft magnetic member can be mated with the permanent magnet thereby to couple the spectacles and the clip-on sun-shades with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.